Airworthiness directives › 2022-09-18
AD 2022-09-18 Airworthiness Directives; The Boeing Company Airplanes
Models named: 707-100 Long Body, -200, -100B Long Body, -100B Short Body series, 707-300, -300B, -300C, -400 series, 717-200, 727. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to all The Boeing Company airplanes identified in paragraphs (c)(1) through (9) of this AD, certificated in any category. (1) Model 707-100 Long Body, -200, -100B Long Body, and -100B Short Body series airplanes, and Model 707-300, -300B, -300C, and -400 series airplanes. (2) Model 717-200 airplanes. (3) Model 727, 727C, 727-100, 727-100C, 727-200, and 727-200F series airplanes. (4) Model DC-8-11, DC-8-12, DC-8-21, DC-8-31, DC-8-32, DC-8-33, DC-8-41, DC-8-42, DC-8-43, DC-8-51, DC-8-52, DC-8-53, DC-8-55, DC-8F-54, DC-8F-55, DC-8-61, DC-8-62, DC-8-63, DC-8-61F, DC-8-62F, DC-8-63F, DC-8-71, DC-8-72, DC-8-73, DC-8-71F, DC-8-72F, and DC-8-73F airplanes. (5) Model DC-9-11, DC-9-12, DC-9-13, DC-9-14, DC-9-15, DC-9-15F, DC-9-21, DC-9-31, DC-9-32, DC-9-32 (VC-9C), DC-9-32F, DC-9-32F (C-9A, C-9B), DC-9-33F, DC-9-34, DC-9-34F, DC-9-41, and DC-9-51 airplanes. (6) Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), DC-10-40, and DC-10-40F airplanes. (7) Model MD-10-10F and MD-10-30F airplanes. (8) Model MD-11 and MD-11F airplanes. (9) Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), MD-88, and MD-90-30 airplanes.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) For airplanes identified in paragraphs (c)(1) and (c)(3) through (6) of this AD: Within 2 days after the effective date of this AD, revise the Limitations Section of the existing AFM to include the information specified in figure 1 to paragraph (g)(1) of this AD. This may be done by inserting a copy of figure 1 to paragraph (g)(1) of this AD into the Limitations Section of the existing AFM. BILLING CODE 4910-13-P ER23MY22.000 (2) For airplanes identified in paragraphs (c)(2), (7), and (8) of this AD: Within 2 days after the effective date of this AD, revise the Limitations Section of the existing AFM to include the information specified in figure 2 to paragraph (g)(2) of this AD. This may be done by inserting a copy of figure 2 to paragraph (g)(2) of this AD into the Limitations Section of the existing AFM. ER23MY22.001 (3) For airplanes identified in paragraph (c)(9) of this AD: Within 2 days after the effective date of this AD, revise the Limitations Section of the existing AFM to include the information specified in figure 3 to paragraph (g)(3) of this AD. This may be done by inserting a copy of figure 3 to paragraph (g)(3) of this AD into the Limitations Section of the existing AFM. ER23MY22.002
Unsafe condition
This AD was prompted by a determination that radio altimeters cannot be relied on to perform their intended function if they experience interference from wireless broadband operations in the 3.7-3.98 GHz frequency band (5G C-Band), and a determination that during approach, landings, and go-arounds, as a result of this interference, certain airplane systems may not properly function, resulting in increased flightcrew workload while on approach with the flight director, autothrottle, or autopilot engaged. The FAA is issuing this AD to address 5G C-Band interference that could result in increased flightcrew workload and could lead to reduced ability of the flightcrew to maintain safe flight and landing of the airplane.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1